Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
1995 BMW 850CiFACTORY OEM SERVICE PROCEDURE
Engine Electrical System - Repair
- Troubleshooting
- Ignition, distributor
- 12 11 094 Replacing both distributor caps (M 73)
- 12 11 096 Replacing left distributor cap (M73)
- 12 11 098 Replacing right distributor cap (M73)
- 12 11 114 Replacing both distributor rotors (M73)
- 12 11 116 Replacing left distributor rotor (M73)
- 12 11 118 Replacing right distributor rotor (M73)
- 12 11 206 Checking left distributor cap, ignition leads and ignition line connector (M73)
- 12 11 208 Checking right distributor cap, ignition leads and ignition line connector (M73)
- Ignition wires, spark plugs
- Ignition Coil
- Electronic Switching
- 12 14 500 Removing and installing / replacing both control units (Digital Motor Electronics) (M73)
- 12 14 518 Replacing impulse sensor (cylinder bank 7-12) (M73)
- 12 14 519 Replacing impulse sensor (cylinder bank 1-6) (M73)
- 12 14 525 Replacing sensor for cylinder recognition (camshaft sensor) (M73)
- 12 14 700 Coding control module (DME / DDE)
- 12 14 705 Programming control unit (DME / DDE)
- 61 35... Note on replacing codable/programmable control units
Factory Service Tools
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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